Rongge

Hello Freinds ! Here designed SIMPLE BAR DISPLAY WITH ALARM FLASHER . Schematic: Return to Display Circuits. By using two switching transistors and two LEDs, this circuit can distinguish low-level ac and dc signals. If the red LED illuminates, the signal is positive dc. If the yellow LED lights, the signal is negative dc. If the signal is ac, both LEDs will light. Bar Display With Alarm Flasher Circuit Schematic

Interfacing Seven Segment (c.c) Display In this tutorial i will show you how to interface S.S display with PIC16F887/877. For this we required 74hc573 latches, 74hc238 decoder, and 74ls48 bcd2dec converter. Latches are used to enable/disable the S.S, 74hc234 a 3x8 decoder selects the appropriate latch to be enable/disable. 74ls48 just converts the bcd input to respective decimal output to operate S.S properly.  Now lets write a small program that display the digital manual input at S.S, enter by the user; by using 8-way dip switch. Code:    void main() {      int x,y,i,j;      trisc=0;      portc=0;      trisd=255;      //all bits for input  ///////////////// comment 4 pic16f877/////////      ansel=0;      anselh=0;           c1on_bit=0;      c2on_bit=0; ///////////...

When the new generation iPhone launches . some time this year there is a lovely chance that it will have a bigger display. The Wall Street Journal reports that Apple has began to order parts for the tool, including a display that is larger then the 3.5-inch that the iPhone has used since it was released. The screen on the 2012 iPhone will be at least four inches, according to the document. About a bigger iPhone screen have been around  as long as the iPhone itself, which mounted to an amazing amount of noise before the announcement of the iPhone 4S last year.The iPhone five, as it was known at the time, had a lot of rumors about it that did not pan out, of the most prominent being the move to a bigger display. Rumors had it that the size of the next-gen Retina display could be three.7-, 4-, or 4.2 inches, though the latter was quickly dispelled. Apple had no comment on the matter, but the article noted that Apple could be making the move in order to compete with rivals, like Samsun...